Excavating, hoisting, and conveying bucket.



No. 879,972. I PATENTED FEB. 25, 1908. J. MAROUSGH.

EXCAVATING, HOISTING, AND CONVEYING BUCKET,

APPLIOATIONIILBD JUNE 5. 1907.

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'No. 879,972. PATENTED 123.25, 1908. J. MAROUSGH.

EXGAVATING, HOISTING, AND CONVEYING BUCKET.

APPLICATION rum) mm: 5. 1907.

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JOSEPH MAROUSCH, OF CLEVELAND, OHIO.

EXCAVATING, HOISTING, AND CONVEYING BUCKET.

Specification of Letters Patent.

Patented Feb. 25, 1908.

Application filed June 5. 1907. Serial No. 377.442.

To all whom it may concern:

Be it known-that I, Josnrn MAROUSOH, Git1- zen of the United States,residing at Oleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Excavating, Hoisting,and Conveying Buckets, of which the following is a specification.

This invention relates to excavating, hoisting and conveying buckets,and is particularly an improvement on the invention shown in my UnitedStates Patent No. 782,864, dated February 21, 1905.

The invention relates to that class of buckets which are hoisted andoperated by means of a single cable, and has for its object to soarrange the cable and associated parts as to materially increase theexcavating power of the bucket and to release the strain on the partsthereof, as well as to decrease the load on the engine. I

A further object of the invention is to provide a latch which willprevent the bucket from opening, until the latch is disengaged by hand.

Other objects and improvements will be apparent from the followingdescription.

In the accompanying drawings, wherein the invention is illustrated,Figure 1 is a side elevation with the buckets in open position. Fig. 2is a similar view showing a different arrangement of the hoisting cable.Fig. 3 is a cross section. Fig. 4 is a side elevation showing thebuckets in closed position. Fig. 5 is a detail of the upper cross headand the sheaves carried thereby.

Referring specifically to the drawings, A indicates the buckets swingingbetween side supporting frames B and suspended by two links K andpivotally connected to angular levers D which are pivoted to the sideplates at (Z. These angular levers are pivotally connected at the elbowsto links G connected to a horizontally arranged slide C which in itslower position, when the bucket is opened, rests upon a cross bar 15which extends between the lower ends of the side plates B at the lowerends of the slide ways therein and forms a stop to limit the descent ofthe slide C. The buckets are closed, and theslide O raised and lowered,by means of a cross head 24, which slides in the guides b in the sideplates B, and carries hooks R which engage pins 26 projecting fromopposite sides of the cross plece C. All this is substantially the sameas the construction shown and described in my patent above referred to,which may be consulted for further particulars.

6 indicates a top sheave supported on brackets 7 projecting upwardlyfrom a top cross piece 15 extending between the tops of the side platesB. A pair of lower sheaves are supported or carried by the sliding crosshead 24 which is preferably made in hollow form, with a partition 25 atthe middle to support the curved arms 30 extending on opposite sides ofthe cross head and secured to the partition by the bolts 8. The arms 30are angle bars, to give the required strength. The sheaves 13 areournaled between the op posite ends of the said arms.

X indicates, as a whole, a traveling carrier of a Well-known kind,arranged to run upon a track Y, and the bucket is automatically lockedto this carriage and travels there with after it is hoisted thereto.

Referring to the arrangement of the hoisting cable shown in Figs. 1 and4, said cable 10 is fastened at its dead end to a pin 17 on the carriageand extends thence around one of the sheaves 13, over the sheave 6,around the other sheave 13, over a sheave a; on the carriage and under ahook block 18 and thence around another sheave 90 on the carriage, andthence away to the hoisting mechanism. The block 18 is connected to ahook 14 which engages an eye 22 on a bracket 20 connected to the topcross piece 15 at the middle thereof.

In the cable arrangement shown in Fig. 2 a short cable is connected atits dead end to the pin 17 and extends thence around the sheaves 13 and6 in the same manner as above described, and its free end is engaged bythe hook 14 of the block 18. The hoisting cable 10 is connected at itsdead end to the carriage as indicated at 17 and extends thence aroundthe block 18 and the sheave a; on the carriage.

The arrangement shown in Fig. 1 is particularly serviceable in workrequiring a long drop, as when operating on ore or the like in a vessel.That shown in Fig. 2 is useful when operating on a stock pile, toaccommodate the necessary movement of the buckets. The hooks R, whichconnect the cross head 24 and the cross beam C at each operation of thebucket, are pivoted to said cross head at r and, as said, engage thepins 26 carried by the cross beam. The tails of the hooks are pivotallyconnected to a lever 28 mounted upon a fulcrum piece F and projectinginto position to strike the lower end of a pin 50 projecting downwardlyfrom the the buckets are closed, as shown in Fig. 4.

The plurality of notches allows the locking position to be varied. Thelatch swings free, and when the buckets are closed the pin a engages inthe notch and so forms a back stop which prevents the buckets fromopening, even after the hooks R are disengaged in the manner abovedescribed. The latch can be tripped by hand or by any suitable tackle orrigging. If desired, the tail latch may be omitted or rendered inactive,and the tripping pin 50 removed, and the release lever 28 may. then beconnected to a line so that the hooks may be disengaged and the bucketsdumped in the manner described in my patent.

In operation, when the buckets are dropped to the material and the cableslacked, the cross head 24 will fall by its weight and the hooks R willengage the pins 26. Then on the hoist the buckets will close, the crosshead 24 and beams C being locked together by the hooks and carried tothe top of the guides B. The block 18 will lock in the carriage in awellknown manner and the carriage will travel with the bucket to thedump. The buckets may then be dumped by releasing the tail latch. N, ifthe same is used, or by the trip lever 28 if the tail latch is not used.The cable and sheave arrangement relieves the intense strain on thebucket and tackle incident to the direct connections shown in my saidpatent, and permits the free use of the bucket even in hard, frozen orheavy material.

I claim:

1. The combination of a carriage, a supporting frame, buckets arrangedto open and close in the frame, and a closing, hoisting and conveyingcable attached at its dead end to the carriage and operatively connectedto the buckets.

2. The combination of a carriage, a supporting frame having an uppersheave therein, buckets pivotally connected to the frame, a lower sheaveconnected to the buckets and movable up and down, and a closing,hoisting and conveying cable attached at its dead end to the carriageand extending around the sheaves. I

3. The combination of side frames having vertical guides, and a crosspiece at the top, a top sheave at the middle of said cross piece, across head movable up and down in the guides, arms projecting from thecross head on opposite sides thereof, sheaves mounted on the arms,buckets supported by the side frames and having an operative connectionto the cross head, and a hoisting cable extending around the lastmentioned sheaves and intermediately around said top sheave.

4. The combination of side frames, buckets hung therefrom and adapted toswing open and closed, and a latch pivoted to the side frame andengageable with a projection on a bucket when the buckets are closed andacting to prevent opening thereof.

5. The combination with a frame, of buckets hung therein and arranged toswing together or apart, a cross piece slidable up and down in theframe, between and connected to the buckets, a cross head slidable upand down in the frame above the cross piece and having a hookautomatically engageable with the cross piece when the cross head islowered to contact therewith, means at the top of the frame toautomatically disengage the hook when the cross piece is lifted to thetop of the frame and the buckets are closed, and a supplemental latchengageable with the buckets and arranged to hold the same closed untilreleased.

6. The combination with a carriage, and an excavator having bucketswhich open and close, of a closing cable fixed at one end to thecarriage and operatively connected to the buckets to close the same, anda hoisting and conveying cable fixed at its end to the carriage andconnected to the other end of the closing cable.

7. The combination with a frame, and a pair of swinging buckets hungtherefrom, of a cross piece slidable up and down in the frame andconnected to the buckets, a cross head slidable up and down in the frameabove the cross piece and having hooks automatically engageable with thecross piece when lowered thereto, a lever connected to the hooks, and astop projecting at the top of the frame and arranged to be struck by thelever and to release the hooks when the cross head and piece are raisedto the top of the frame.

In testimony whereof I aflix my signature, in presence of two witnesses.

JOSEPH MAROUSCH.

Witnesses:

JOHN A. BOMMHARDT, SHIRLEY BOMMHARDT.

